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Property, Plant And Equipment
12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant And Equipment
PROPERTY, PLANT AND EQUIPMENT
The classes of property, plant and equipment as of December 31 are summarized as follows ($ in millions):
 
 
2013
 
2012
Land and improvements
$
189.7

 
$
181.0

Buildings
1,010.1

 
954.1

Machinery and equipment
2,279.0

 
2,210.8

Customer-leased instruments
1,032.0

 
757.3

Gross property, plant and equipment
4,510.8

 
4,103.2

Less accumulated depreciation
(2,299.5
)
 
(1,962.3
)
Property, plant and equipment, net
$
2,211.3

 
$
2,140.9